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Highways and bridges

Mott MacDonald serves both public and private clients across North America with comprehensive services for highways and bridges. Our services cover the full range of engineering disciplines from planning and design to program management, construction management, operations, and asset management. We also offer advanced visualization capabilities.

Our expertise, innovation, and creative approach to solving highway and bridge design problems has produced award-winning roads and bridges and built a reputation for customer satisfaction, shown by the overwhelming majority of design commissions we receive from past clients.

Transportation planning

  • Concept development
  • Major investment studies
  • Corridor studies
  • Traffic studies
  • Type/size/location studies
  • Environmental assessment and impact studies
  • Toll traffic forecast modeling
  • Community involvement programs
  • Master planning studies
  • Travel demand forecasting
  • Intelligent Transportation Systems
  • Modeling/simulation
  • Traffic impact studies
  • Origin/destination surveys
  • Infrastructure appraisals and evaluation
  • Traffic planning and engineering
  • Travel surveys
  • Finances and economics
  • Micro and macro simulation modeling


  • Preliminary and final design
  • Detailed engineering
  • Contract preparation and procurement
  • Bridge load rating and capacity studies
  • Roadway and bridge rehabilitation
  • Cost estimates
  • Hydrology/hydraulics/stormwater management
  • Traffic signal systems

Project delivery

  • Program management
  • Design-build
  • Owner’s engineer
  • Technical advisor to financial sector
  • Independent engineer
  • Traffic and revenue advisors
  • Public-private partnerships

Construction services

  • Construction management
  • Resident engineering
  • Field office staffing
  • Shop drawing review
  • Contract administration
  • Engineering/technical and inspection
  • Quality control/quality assurance

Other key services

  • Constructibility and peer reviews
  • Bid services
  • Value engineering
  • Risk management and mitigation
  • Seismic analysis
  • Scour analysis and retrofits
  • Bridge condition inspections
  • Fatigue and fracture critical analysis
  • Pavement management
  • Road safety audits
  • Network safety screening

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